PiggyBudget is a personal budget manager which allows you to track a budget against your expenses. It has an appealing and intuitive user interface and is very easy to use without any accounting knowledge.

The Unofficial HAMP Loan Modification Calculator estimates loan modification calculations using JavaScript. The code is part of an independent effort to analyze the HAMP program created by the US government to find a way to make home loans more affordable. This calculator uses the loan modification procedures disclosed in public documents such as Treasury Supplemental Directive 09-01 and the MHA Servicers Handbook v4. It includes the calculations for HAMP Tier 1 and 2, with or without principal reduction. The user can easily run one calculation, watching each step in the process in detail, or quickly obtain graphs of multiple scenarios.

With TickVue you can track the stock market in nearly real-time. It queries Yahoo Finance periodically, updates the stock values you are interested in, and calculates your portfolio value and daily gain.

bgt is a program for creating and maintaining a budget from the UNIX/Linux command line. It is written in ANSI C. For number processing, it uses the Binary Coded Decimal number engine from bc. For data storage, it uses SQLite. All functionality for the program is available from the command line and does not require a GUI. It should be portable to other environments, including Windows, but it uses Unix-only directory names, so it would need some tweaking.

Dough is a personal budgeting application. It's designed to be both simple and attractive whilst being very effective at helping you keep in control of your spending. It features an attractive, to the point user interface with plenty of visual elements. It has many options for filtering and searching transactions, can import your bank statements, and you can make graphs of pretty much anything.